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一面 1. 簡短自我介紹 2. 事務的ACID，其中把事務的隔離性詳細解釋一遍 3. 髒讀、幻影讀、不可重複讀 4. 紅黑樹、二叉樹的算法 5. 平常用到哪些集合類？ArrayList和LinkedList區別？HashMap內部數據結構
ORDER BY id 爲何效率不高 背景 系統代碼中有以下查詢SQL，DBA要求優化； SELECT id, user_id, patient_id, his_id, bill_no, log_model FROM platfom_fee
搞了臺阿里雲服務器，準備學習下基於Docker容器的各種主流技術部署，那麼讓我們愉快的開始吧！ Docker環境安裝 安裝yum-utils：yum install -y yum-utils device-mapper-pe
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Linux 系統安裝mysql過程記錄 資源清單 1 mysql mysql-5.6.37-linux-glibc2.12-x86_64.tar.gz 2 linux CentOS release 6.9 (Fin
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線程池原理 Java創建一個線程很方便，只需new Thread()就可以， 但是當有多個任務需要進行進行處理時，頻繁的進行創建和啓用線程同樣需要系統開銷，也不利於管理，於是同mysql的連接池一樣，自然有對線程的管理池即線程池。
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